http://www.esafety.cn/blog/wll/66030/index.html

安全生产技术练习29

作者[孙锡云] 发表于[2012-9-8 17:50:00]

安全生产技术练习29

 

1、当出现危险情况时，能瞬时动作，终止设备的一切运动，并与制动器或离合器连锁，以保证迅速终止运行的开关是______。

A.紧急停车开关

B.制动开关

C.紧急制动开关

D.停车开关

标准答案：a

2、为防止人体手掌误通过防护罩，碰触机械传动部件而造成伤害，防护罩的网眼开口尺寸应不大于_____mm。

A.50

B.40

C.30

D.20

标准答案：d

3、煤气发生站水煤气、半水煤气的含氧量达到▁▁时必须停炉。

A.0.5%

B.0.7%

C.1%

D.1.2%

标准答案：c

4、氧气站空分设备的吸气口应超出制氧(站)屋檐____m以上且离地面铅垂高度必须大于____m。

A.45

B.36

C.28

D.110

标准答案：d

5、冲压作业中的冲压事故可能发生在______环节和______空间。

A.滑块的上行程，上下模具之间的空间

B.滑块的上行程，上下模具之外的空间

C.滑块的下行程，上下模具之间的空间

D.滑块的下行程，上下模具之外的空间

标准答案：c

6、把电气设备正常情况下不带电的金属部分与电网的保护零线进行连接，称作______。

A.保护接地

B.工作接零

C.工作接地

D.保护接零

标准答案：d

7、为消除静电危害，可采取的有效措施是___。

A.保护接零

B.绝缘

C.接地放电

D.隔离

标准答案：c

8、下列情况所述钢丝绳，没有达到报废标准的是(　)

A.整条绳股断裂

B.麻芯外露

C.钢丝绳有明显的腐蚀

D.钢丝绳径向磨损时超过原直径的10%

标准答案：c

9、手工送料的木工平刨床刀轴的刨刀体采用______形状的更安全。

A.六棱柱

B.四棱柱

C.多棱柱

D.圆柱

标准答案：d

10、金属容器内、隧道内、水井内以及周围有大面积接地导体等工作地点狭窄，行动不便的环境应采用______V安全电压;水上作业等特殊场所应采用______V安全电压。

A.126

B.3624

C.4224

D.3612

标准答案：a

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原创

作者[原创(游客)] 发表于[2016-9-30 12:38:25]
原创(游客)http://njryw168.lofter.com/post/1e6983e5_c7ee555 http://rywywj.lofter.com/post/1e6a80c3_c8239dc http://rywkdks.lofter.com/post/1e698063_c7f595e http://rywydx.lofter.com/post/1e6a68e3_c80c755 http://rywydx.lofter.com/post/1e6a68e3_c8141e5 http://rywkdks.lofter.com/post/1e698063_c7f83c1 http://rywkdks.lofter.com/post/1e698063_c7f59a2 http://rywywj.lofter.com/post/1e6a80c3_c820e9f http://rywywj.lofter.com/post/1e6a80c3_c8233df http://njryw168.lofter.com/post/1e6983e5_c7ed833

原创

作者[原创(游客)] 发表于[2016-9-28 18:02:06]
原创(游客)http://bjseoywj.lofter.com/post/1e66bf3e_c710655 http://seogsywj.lofter.com/post/1e634756_c6ddb50 http://seogsywj.lofter.com/post/1e634756_c6deacc http://seogsywj.lofter.com/post/1e634756_c6ddc9b http://wztgywj.lofter.com/post/1e65f473_c6eea8a http://bjseoywj.lofter.com/post/1e66bf3e_c71093a http://ywjseo.lofter.com/post/1e634752_c652edb http://wztgywj.lofter.com/post/1e65f473_c6f0db7 http://ywjseo.lofter.com/post/1e634752_c64fdb3 http://wztgywj.lofter.com/post/1e65f473_c6ef515

原创

作者[原创(游客)] 发表于[2016-9-6 18:27:16]
原创(游客)http://rywwx.lofter.com/post/1e5a844e_c3c8744 http://rywwx.lofter.com/post/1e5a844e_c3c8743 http://rywwx.lofter.com/post/1e5a844e_c3c8742 http://rywwx.lofter.com/post/1e5a844e_c3c8741 http://rywwx.lofter.com/post/1e5a844e_c3c8740 http://rywwx.lofter.com/post/1e5a844e_c3c873f http://rywwx.lofter.com/post/1e5a844e_c3c873e http://rywwx.lofter.com/post/1e5a844e_c3c873d http://rywwx.lofter.com/post/1e5a844e_c3c873c http://rywwx.lofter.com/post/1e5a844e_c3c873b
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